The Wall Street Journal (newspaper) of September 9, 2016, reported "recent tropical storms and hurricanes in the Gulf of Mexico interrupted oil shipments to oil refineries in the area." When an economist says the "supply of oil decreased" she means that: A. The supply curve of oil has shifted to the right. B. Producers are now willing and able to make less oil available at each possible price. C. The price of oil has decreased and, as a result, producers are making less glass available. D. Producers are now willing and able to make more oil available at each possible price. E. The price of oil has increased and, as a result, producers are making less oil available.